Thank you for your comment in Decemeber! It has smoothed out and I did some research on the childhood anxiety and school and found some very helpful information. I apologize for my severly delayed thank you!!!
I believe this is not a behavioural issue but is an anxiety issue. It appears your son is suffering from anxiety although from your posting, it does not seem severe. His fears/anxieties (which I suspect he will not be able to explain to you or to himself) are causing this behaviour - so, if I am correct, discipline won't work. If anxiety is the issue, the only thing that will work is to "lessen the anxiety" - this is the difficult part. Often after a break, as a week-end, holiday or vacation, the child's anxiety will increase and that is what you are seeing on Mondays. Understanding and patience do help - stating that your son must go to school is probably better than trying to rationalize - his emotions probably are overtaking his cognizant abilities. And leaving him with his teacher during a meltdown is O.K. - it will be harder on you than him - just reassure him that you will be back at a certain time to get him. It is best not to show your emotions and/or concerns as this will only intensify your son's fears.
I might suggest you google the phrase "childhood anxiety and school" or "school refusal" or similar words/phrases to better help you to understand this issue. You might wish to discuss this issue with your son's physician, but at this time, I think parental/school/daycare understanding of this issue should be enough to help your son learn how to manage and cope with his fears/anxieties. Hope this helps ...